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High-strength BN-AlN-B4C composite ceramic side sealing plate and preparation method thereof
The invention discloses a high-strength BN-AlN-B4C composite ceramic side sealing plate and a preparation method of the high-strength BN-AlN-B4C composite ceramic side sealing plate. According to the technical scheme, the preparation method comprises the following steps: mixing 50-90wt% of hexagonal boron nitride powder and 10-50wt% of carbon aluminum boride powder, putting the mixture into a planetary ball mill for ball milling, drying and screening to obtain composite powder; the composite powder is placed in a graphite mold, then the graphite mold is placed in hot pressing sintering equipment, pre-pressing treatment and vacuumizing are carried out, then the pressure is increased to 30-70 MPa, the temperature is increased to 1500-1800 DEG C, finally, heat preservation and pressure maintaining are carried out for 60-120 min under the conditions that the temperature is 1500-1800 DEG C and the pressure is 30-70 MPa, grinding, polishing and cutting are carried out, and the high-strength BN-AlN-B4C composite ceramic side sealing plate is obtained. The production cost is low, and the prepared high-strength BN-AlN-B4C composite ceramic side sealing plate has the characteristics of good compactness, high bending strength, high toughness, good thermal shock resistance and long service life.
本发明公开了一种高强度BN‑AlN‑B4C复合陶瓷侧封板及制备方法。其技术方案是：将50～90wt％的六方氮化硼粉体与10～50wt％的碳硼化铝粉体混合，置于行星式球磨机中球磨，干燥，筛分，得到复合粉体。将复合粉体置入石墨模具中，再将石墨模具置于热压烧结设备中，预压处理，抽真空，然后加压至30～70MPa，升温至1500～1800℃，最后在1500～1800℃和30～70MPa条件下保温保压60～120min，经打磨、抛光和切割，得到高强度BN‑AlN‑B4C复合陶瓷侧封板。本发明生产成本低，所制备的高强度BN‑AlN‑B4C复合陶瓷侧封板具有致密性好、弯曲强度高、韧性高、抗热震性能好和使用寿命长的特点。
High-strength BN-AlN-B4C composite ceramic side sealing plate and preparation method thereof
The invention discloses a high-strength BN-AlN-B4C composite ceramic side sealing plate and a preparation method of the high-strength BN-AlN-B4C composite ceramic side sealing plate. According to the technical scheme, the preparation method comprises the following steps: mixing 50-90wt% of hexagonal boron nitride powder and 10-50wt% of carbon aluminum boride powder, putting the mixture into a planetary ball mill for ball milling, drying and screening to obtain composite powder; the composite powder is placed in a graphite mold, then the graphite mold is placed in hot pressing sintering equipment, pre-pressing treatment and vacuumizing are carried out, then the pressure is increased to 30-70 MPa, the temperature is increased to 1500-1800 DEG C, finally, heat preservation and pressure maintaining are carried out for 60-120 min under the conditions that the temperature is 1500-1800 DEG C and the pressure is 30-70 MPa, grinding, polishing and cutting are carried out, and the high-strength BN-AlN-B4C composite ceramic side sealing plate is obtained. The production cost is low, and the prepared high-strength BN-AlN-B4C composite ceramic side sealing plate has the characteristics of good compactness, high bending strength, high toughness, good thermal shock resistance and long service life.
本发明公开了一种高强度BN‑AlN‑B4C复合陶瓷侧封板及制备方法。其技术方案是：将50～90wt％的六方氮化硼粉体与10～50wt％的碳硼化铝粉体混合，置于行星式球磨机中球磨，干燥，筛分，得到复合粉体。将复合粉体置入石墨模具中，再将石墨模具置于热压烧结设备中，预压处理，抽真空，然后加压至30～70MPa，升温至1500～1800℃，最后在1500～1800℃和30～70MPa条件下保温保压60～120min，经打磨、抛光和切割，得到高强度BN‑AlN‑B4C复合陶瓷侧封板。本发明生产成本低，所制备的高强度BN‑AlN‑B4C复合陶瓷侧封板具有致密性好、弯曲强度高、韧性高、抗热震性能好和使用寿命长的特点。
High-strength BN-AlN-B4C composite ceramic side sealing plate and preparation method thereof
一种高强度BN-AlN-B4C复合陶瓷侧封板及制备方法
YU CHAO (author) / YAN HAO (author) / DENG CHENGJI (author) / CHEN YUFENG (author) / DING JUN (author) / DONG BO (author) / ZHU HONGXI (author)
2024-01-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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